Sickle cell anaemia occur when the red blood cell becomes sickle shape instead of spherical making it difficult for oxygen to be transported round the body this result to many complications experienced by sickle cell patient. The Haemoglobin it's self is a component of blood that transports oxygen round the body cell which needs it as a result it also responsible for the colour of the blood. But however there is till hope less stress should be avoided,get enough rest always eat enough fruits and get enough balance diet above all visit your doctor regularly.